“For the conversion of pyruvate to lactate the IC50 for … the reverse reaction the IC50 is 12 microM. Gossypol is a competitive inhibitor … (Km = 17 microM), and NAD+ , Ki = 6 microM (Km = 130 microM), and noncompetitive for pyruvate, Ki = … microM), and lactate, Ki = 52 microM (Km = 5.6 mM).”